engine AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual A6 1995 C5 / 2.G AUDI AUDI https://www.carmanualsonline.info/img/6/987/w960_987-0.png AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual

Page 1 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-1
 
     
Cooling system components, 
removing and installing 
     
WARNING! 
     
The cooling system is pressurized when the 
engine is warm. When opening the expansion 
tank, wear gloves and ot

Page 7 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-5
 
  
Cooling system components (on engine)
 
1 - 
Connection 
For thermostat
2 - 
O-ring Always replace
3 - 
Coolant thermostat Removing and installing   page 19
-23
Note installation position

Page 8 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-6
 
  
7 - 
Engine Coolant Temperature (ECT) sensor 
-G62- 
For Engine Control Module (ECM)If necessary, release pressure in cooling 
system before removing Checking   Repair Manual, 2.8 Liter V6

Page 11 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-9
 
  
Coolant hose connection diagram
 
1 - 
Lower coolant hose 
From radiator to engine
2 - 
Cylinder head/cylinder block 
3 - 
Intake manifold 
4 - 
Coolant line From heat exchanger to engine bl

Page 13 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-11
      
Cooling system, draining and refilling
 
     
Draining  
     
WARNING! 
     
The cooling system is pressurized when the 
engine is warm. When opening the expansion 
tank, wear gloves a

Page 14 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual CAUTION! 
Follow disposal regulations for coolant.  hose (from radiator to engine) and disconnect radiator hose from 
radiator. 
Pa
ge 14 of 40 Coolin
g system com
ponents, removin
g and installin
g
1

Page 15 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-12
 
    
Filling  
Notes:  -  Drain engine coolant at drain plug (arrow).
Only use coolant additive G12 (according to TL VW 7745 D). G12 is 
red in color. Do not mix G12 with any other coolant add

Page 16 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-13
      
Note (continued from page   Page 19
-12
 ):  
     
If for climatic reasons greater frost protection is 
required, the amount of G 12 can be increased, 
but only up to 60% (frost protecti

Page 17 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-14
      
-  Replace coolant drain plug O-ring and install 
coolant drain plug into engine. 
     
   Tightening torque: 20 Nm (15 ft lb).
     
-  Install lower right coolant hose and secure with

Page 18 of 40

AUDI A6 1995 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual 19-15
 
    
-  Loosen bleeder screw on lower coolant line (arrow) under expansion 
tank (if necessary, unbolt expansion tank). 
-  Top off coolant until it flows out from bleeder screw.
-  Close blee
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